After recruiting 200 family caregivers of dying cancer patients according to inclusion criteria, they will be randomly assigned to one of the four groups: family-based dignity intervention (group 1), expressive writing intervention (group 2), combined family-based dignity intervention and expressive writing (group 3), and controls (group 4). Allocation concealment will be done using the blocked randomization method. For this, we will use six blocks with the sizes of 4 (A: group 1, B: group 2, C: group 3, and D: group 4) that the order of the letters in the six block will be different (e.g. ABCD, ACDB, and etc.). Then, a code ranging between 1 and 6 will be assigned to each block. For allocating each four caregivers, at first, we will randomly select one of the six blocks using a 6-sided dice, and then, caregivers will be assigned to the four intervention group according to the order of letters in the selected block. Until the all groups become complete, the random allocation will continue.